Re: Items from packs/expansions I already purchased being taken away...
Base game items are never removed and moved to packs likewise items from a pack is never removed a few items in packs have been moved to base game but that would still mean that you have them- The latest example of that is wolfsbane (a plant). Packs may introduce new versions of an Item but that is it.
You mention tents which were never base game but came with the expansion Outdoor retreat. If you own that pack you will still have the two tents that came with it.
If there are items that you feel are missing you should specify which items and where you think they should be so we can help clear up any confusions you may have or if they are missing from your game help you repair your game.
You should list what expansions you own and the items you think should be there.